Underworld, Inc.

To get away with a crime, criminals look for completely untraceable guns. Enter the “ghost” gun: an exact replica with a fake serial number and no ballistic record — a gun that is potentially invisible to law enforcement.

Mexican cartels dominate an extremely lucrative industry exporting undocumented migrants and squeezing them for cash. Thousands of Central Americans head north to the US border, lured by hopes for a brighter future, but people smugglers, who are often linked to cartels, make it difficult to cross without their supervision, and for a price.

Anything and everything can be faked: watches, purses, shoes, electronics, smartphones. Go underground to see the breathtaking enterprise and expertise of counterfeiting — an economy that turns over an estimated $500 billion a year.

Black market moonshine is big business — high-proof, low-cost, untaxed and illegal. But the law is cracking down and urban bootleggers are bringing fresh competition. It’s the first day of the whiskey-making season for one expert moonshiner. Rosco needs two key elements for a successful and lucrative operation — secrecy and water. He’s found the perfect hidden site deep in the traditional heart of moonshine production: the southern Appalachian Mountains. But 700 miles southwest, in Holmes County, Mississippi, there’s a special police unit cracking down on ’shiners like Rosco.

In America, 14 people die each day waiting for a kidney transplant. Meanwhile, the black market organ trade is thriving, and gangsters with global reach are pocketing easy money. Desperation drives this illegal trade in human spare parts, but the medical community is sounding the alarm and international law enforcement is in hot pursuit of the traffickers.

In Williston, North Dakota, an oil mining boom has brought tens of thousands of blue-collar workers to this once sleepy town. But the 21st century ‘black gold rush’ has also attracted black market operators into town. Motorcycle gangs extort Williston’s bars and strip clubs, while pimps net millions from prostitution. But with the oil boom going bust, criminals must adapt. Laid-off oil workers are becoming this underworld’s most resourceful criminals. Fueling the problem: drugs. Meth-related crime is up 78%. Williston’s law-breaking is now migrating to nearby Fort Berthold Tribal Reservation, where a 12-man police department is inheriting crime brought by 4,000 non-native Americans onto their land from the oil field.

An examination of theft gangs who shift stolen goods from high-end retailers to urban clients, and large crime crews that jack cargo to barter with legal markets at home and abroad.